Merod / Rac-arq

[xxxx]

MEROD / RAC-ARQ
Нужна информация по этим сигналам (демодуляция и декодирование)

[RN9AAA]

Decoder: Code 3 Gold Professional
http://www.hoka.net/old_product/code3goldpro/code3goldprouk.htm
Decoder: Code 30A
http://www.hoka.net/old_product/code30/code30uk.htm

Previously believed by the community at large to be a
MEROD fabrication it has been revealed that the system actually exists. MEROD (Message Entry and Read Out
Device) is the commercial name for the Racal manufactured equipment that uses the RAC-ARQ mode. This
FEC system is documented to run at 150 and 267bd using
a "wide shift FSK". This system documented heavily in
the Radioteletype Code Manual 13th Edition from
Klingenfuss with signal samples available on the
Klingenfuss Modulation cassettes on track 38. Also
if you read the Wavecom W4100 glossy from the company they list RAC-ARQ as an option but later glossies for
the W4100DSP and W41PC no longer list RAC-ARQ. Also known as RACAL-ARQ.

Если это поможет
73

[xxxx]

Понятно. А что нибудь по подробней. Вроде структуры передаваемых бит. FEC кодирование и его параметры.